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Installation Instructions
INSTALLATION BY A HVAC PROFESSIONAL IS RECOMMENDED
The Ultra-Aire 98H is a whole house ventilating dehumidifier that
is integrated into the heating and cooling system to provide the
ultimate in comfort, health and property protection through:
• Dehumidification
• Fresh Air Ventilation (Optional)
• Air Filtration
HVAC Installer: Please Leave Manual for Homeowner
P/N: 4034240
Serial No.:
Sold by:
YEAR
FULL WARRANTY
YEAR
FULL WARRANTY
Install Date:
TS-1037 12/17 Rev A
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Table of Contents
Troubleshooting
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Summary of Contents for Ultra-Aire 98H
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Page 1: Installation Instructions
Installation Instructions INSTALLATION BY A HVAC PROFESSIONAL IS RECOMMENDED The Ultra-Aire 98H is a whole house ventilating dehumidifier that is integrated into the heating and cooling system to provide the ultimate in comfort, health and property protection through: • Dehumidification •... - Page 2 MERV Rating Chart ................22 Service ..................23 Troubleshooting .................. 24 Warranty ..................27 Ultra-Aire is committed to manufacturing quality products. To maintain our standards, product specifications may change without notice. 4201 Lien Road, Madison, WI 53704 (800) 533-7533 www.Thermastor.com | www.Ultra-Aire.com...
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Page 3: Safety Instructions
THIS SYMBOL MEANS IMPORTANT INSTRUCTIONS. FAILURE TO HEED THEM CAN RESULT IN INJURY OR MATERIAL PROPERTY DAMAGE. Registrations The Ultra-Aire 98H conforms to unified standard UL 60335-2-40 and CSA standard C22.2.60335-2-40. WARNING! 120 VOLTS MAY CAUSE SERIOUS INJURY FROM ELECTRIC SHOCK. -
Page 4: Specifications
80 lbs. 95 lbs. 32 3/8" With Collars Installed 26" 14 1/2" 14 1/2" Without Collars Installed 6" Diameter 10" Diameter 19 1/2" 19 1/2" 10" Diameter Front View Side View Rear View Ultra-Aire 98H Installation Instructions www.Ultra-Aire.com | (800) 533-7533... -
Page 5: Optional Accessories
REMOVE COMPRESSOR SHIPPING TIE FROM THE UNIT. FAILURE TO REMOVE SHIPPING TIE WILL CAUSE EXCESS VIBRATION TO BE TRANSMITTED TO THE FRAME. Removal of Compressor Shipping Support The Ultra-Aire 98H uses a compressor to power the refrigeration system. To protect the compressor and refrigeration system during shipping, a plastic tie wrap secures it to the unit’s frame. -
Page 6: Dehumidifier Set Up
• DO NOT place the dehumidifier directly on structural building members without vibration absorbers or unwanted noise may result. Place the Ultra-Aire 98H on supports to raise the base of the unit. • A drain pan with a float switch MUST be placed under the dehumidifier if installed above a living area or above an area where water leakage could cause damage. -
Page 7: Attaching Duct Collars
10" Supply Air Outlet 10" Supply Air Outlet 10" Supply Air Outlet Front View Front View Rear View Rear View Front View Front View Rear View Rear View Top View Top View www.Ultra-Aire.com | (800) 533-7533 Ultra-Aire 98H Installation Instructions... -
Page 8: Electrical Requirements
ELECTRICAL REQUIREMENTS The Ultra-Aire 98H plugs into a common grounded 115 VAC outlet. The device draws 5.9 Amps at 80°F and 60% RH. Locate the dehumidifier in an area where the cord’s length (9') easily reaches a 115 VAC electrical outlet with a minimum of 15 Amp circuit capacity. -
Page 9: Drain Installation
Pitch of drain should be 1" per 10'. An optional condensate pump kit is available for use with the Ultra-Aire 98H and may be installed if lift is required to dispose of condensate. Condensate is automatically pumped to a remote location when the water level in the pump’s reservoir rises to close the float switch. -
Page 10: Ducting To Hvac Systems
• All flexible ducting connected to the Ultra-Aire 98H should be UL listed. • A short piece of flexible ducting on all Ultra-Aire 98H duct connections is recommended to reduce noise and vibration transmitted to rigid ductwork in the structure. -
Page 11: Recommended Hvac System Installations
HVAC system and use it for the dedicated Ultra-Aire 98H return. Select a return from a central location in the house that is always open to the rest of the structure. DO NOT use a return from a room where doors are kept closed. -
Page 12: Alternative Hvac System Installations
Dedicated Ultra-Aire 90 Return to A/C Return • Control should be located remotely from the dehumidifier and placed in a central location. • For basement and crawl space installations, an optional tee can be installed on the Ultra-Aire Supply. Dedicated Ultra-Aire Return to HVAC Return... -
Page 13: Recommended Multiple Hvac Systems Installation
DUCTING TO HVAC SYSTEMS Recommended Multiple HVAC Systems Installation The Ultra-Aire 98H can be installed on multiple HVAC systems. Dehumidified air will be provided to both HVAC systems for distribution throughout the structure. • Backdraft dampers are required in the supply ducts. -
Page 14: No Existing Ductwork Installation
DUCTING TO HVAC SYSTEMS No Existing Ductwork Installation When installing the Ultra-Aire 98H in a structure that does not have a forced air HVAC system, a single return for the Ultra Aire 98H should be installed in a central location. -
Page 15: Recommended Closet Installation
• No inlet duct is required. Air is pulled through the passive vent or louver door from the living space. • Install an insulated duct from outside to the 6" collar of the Ultra-Aire 98H to provide fresh air ventilation (optional). -
Page 16: Alternative Closet Installations
• No inlet duct is required. Air is pulled through the passive vent or louver door from the living space. • Install an insulated duct from outside to the 6" collar of the Ultra-Aire 98H to provide fresh air ventilation (optional). -
Page 17: Fresh Air Ventilation
The time and frequency of ventilation should be based on the size and occupancy of the residence. • The fresh air ventilation duct should be connected to the 6" round collar on the front of the Ultra-Aire 98H. • An insulated 6" diameter duct provides up to 75 CFM of outside air. -
Page 18: Determine Ventilation Requirements
Number of Bedrooms Floor Area < 500 501 - 1000 1001 - 1500 1501 - 2000 2001 - 2500 2501 - 3000 Table 4.1 from ASHRAE 62.2-2016 Record the required CFM ____________ Ultra-Aire 98H Installation Instructions www.Ultra-Aire.com | (800) 533-7533... -
Page 19: Controls
CONTROLS A control must be used with the Ultra-Aire 98H. Ultra-Aire offers the DEH 3000 proprietary control. The DEH 3000 allows homeowners to monitor and control relative humidity and proper ventilation levels in their home. This control is also available with a remote sensing option. - Page 20 Make contact between 24V and FAN terminals Power HVAC Accessory Connect the accessory to the DMPR (or COM) and 24V terminals NOTE: 18 gauge wire needed between the Ultra-Aire 98H dehumidifier and the external control. Ultra-Aire 98H Installation Instructions www.Ultra-Aire.com | (800) 533-7533...
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Page 21: Air Filtration
AIR FILTRATION The Ultra-Aire 98H is equipped with a MERV-13 filter. An optional MERV-11 filter, MERV-14 filter, and MERV-14 filter housing is available at www.ThermastorFilters.com. The filter should be checked and replaced every three to six months. Operating the unit with a dirty filter will reduce dehumidifier capacity and efficiency. -
Page 22: Merv Rating Chart
Residential Sanding Dust <20% 65-70% Spray Paint Dust Electrostatic - Self charging Textile Fibers Window A/C Units woven panel filter. <20% <65% Carpet Fibers Table Data Source: United States Environmental Protection Agency Ultra-Aire 98H Installation Instructions www.Ultra-Aire.com | (800) 533-7533... -
Page 23: Service
To obtain internal access you must use a T25 torx bit. Refrigerant Charging WARNING! SERVICING THE ULTRA-AIRE 98H WITH ITS HIGH PRESSURE REFRIGERANT SYSTEM AND HIGH VOLTAGE CIRCUITRY PRESENTS A HEALTH HAZARD WHICH COULD RESULT IN DEATH, SERIOUS BODILY INJURY, AND/OR PROPERTY DAMAGE. SERVICE MUST BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN. -
Page 24: Troubleshooting
5. Dirty air filter(s) or air flow restricted. 9. If this test works, then the field control wiring is ok. 6. Defective fan or relay. 10. If the problem persists, then the control is most likely faulty. Ultra-Aire 98H Installation Instructions www.Ultra-Aire.com | (800) 533-7533... -
Page 25: Troubleshooting Procedure
7. Collecting the water removed in a 24 hour period 8. Defective compressor. will give a measurement of performance. 9. Restrictive ducting. www.Ultra-Aire.com | (800) 533-7533 Ultra-Aire 98H Installation Instructions... - Page 26 4. Loose or missed wired 2. Look for short in control wiring. control wires at unit. 3. Check wire connections at control and unit. 5. Humidity control defective. 4. Reset circuit breaker button on dehumidifier. Ultra-Aire 98H Installation Instructions www.Ultra-Aire.com | (800) 533-7533...
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Page 27: Warranty
WARRANTY Limited Warranty. Therma-Stor, LLC (“Therma-Stor”) warrants as follows: (i) the Ultra-Aire 98H dehumidifier (“Product”) will be free of material defects in workmanship or materials for a period of two (2) years (“Two-Year Warranty”) following the date of initial purchase of such Product by an original customer purchasing from Therma-Stor or an authorized reseller (“Customer”);... - Page 28 (800) 533-7533 www.Ultra-Aire.com...
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